[Jarrod]

I'd suggest only go on to do a third year of college if you really are sure. Most college courses are also two years so double check that. Your college will be able to provide you with information on pricing.

Also, on a side note, I can understand that you don't want to go off into the world but you're going to have to at some point and if you don't do it now, will you do it in the future? Don't just do another course at college because you think it's the comfortable/easy option because you might find out that being in college for an extended period is harder than actually leaving and going off into the world.